what is a door trigger?

Hi  what does a door trigger do and is it needed for keyless entry system,,98 Dodge Ram 2500 CTD  12V QC auto,,thanks

it is what tells the car/alarm that the door is open. No you don't need it for a keyless entryCertified Security Specialist

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You'll only need to worry about the door trigger if it is on a security system. Beyond that, you shouldn't need to worry about it, but there are some models and vehicles where it is recommended you access it to prevent damage to the locks and the actuators. (Acura and Honda is where you will need this the most. If you try to lock the car with the doors open, you could damage the motor's gears because they have a mechanism that prevents the door from locking with the door open.Never send your ducks to eagle school.

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